Dome Company, Which Uses a Process-Costing System, Began Operations on January

Dome Company, which uses a process-costing system, began operations on January 1 of the current year. The company incurred conversion cost evenly throughout manufacturing. If Dome started work on 3,000 units during the period and these units were 70% of the way through manufacturing, it would be correct to say that the company has:

A) 3,000 physical units in production.
B) 2,100 completed units.
C) 900 in-process units.
D) 900 equivalent units of production.
E) 3,000 equivalent units of production.